<!DOCTYPE html>

<html>
    <head>
        <meta charset="UTF-8">
        <title>体验</title>
        <!-- 首先导入 .less 文件 -->
        <link rel="stylesheet/less" type="text/css" href="styles/hello.less" />
        <!-- 然后再导入 lett.js 库 -->
        <script src="scripts/less.js" type="text/javascript"></script>
    </head>
    <body>

        <div class="wrapper first">
            <div class="odd">1</div>
            <div class="even">2</div>
            <div class="odd">1</div>
            <div class="even">2</div>
        </div>

        <div class="wrapper second">
            <div class="odd">1</div>
            <div class="even">2</div>
            <div class="odd">1</div>
            <div class="even">2</div>
        </div>
        
    </body>
</html>